Effective Techniques for Uniting Honeybee Colonies in Spring

Spring is one of the most telling times of year for any beekeeper. As hives come back to life after winter, inspections can quickly reveal a sobering reality – not all colonies survived with equal strength. Some emerge buzzing and full of activity, while others are noticeably thin, slow, or without a functioning queen at all. When a colony is too weak to recover on its own, uniting it with a stronger one is often the smartest decision a beekeeper can make. Done correctly, it transforms two struggling units into one thriving, productive colony ready to capitalize on the spring nectar flow.

Why uniting colonies makes sense in spring 🔗

Honeybee colonies function on the strength of numbers. According to Mississippi State University Extension, a colony’s honey yield is significantly shaped by its population heading into the spring bloom – weak colonies simply cannot field enough foragers to take full advantage of the nectar flow. Uniting resolves this by consolidating worker bees, brood, and resources into a single, stronger unit.

Spring uniting is particularly useful in these situations:

• Queenless colonies: When a colony has lost its queen and cannot raise a new one in time, uniting it with a queen-right colony is the most reliable fix.
• Two small or “dink” colonies: As Betterbee notes, two undersized but otherwise healthy colonies can be merged to create one strong unit capable of splitting again in spring.
• Failing queen situation: If a queen is old, producing a poor brood pattern, or laying erratically, uniting her colony with a stronger one under a productive queen is far more efficient than waiting for the colony to dwindle.

The key rule, emphasized by Mississippi State University Extension, is that diseased colonies should never be united with healthy ones – doing so risks spreading pathogens like Varroa mites, Nosema, or American foulbrood to the stronger colony, compounding the problem rather than solving it.

Identifying colonies that need uniting 🔗

Signs of a failing or queenless colony 🔗

Before deciding to unite, inspect both colonies carefully. A colony with a failing queen shows very specific warning signs. Mann Lake Bee & Ag Supply explains that the absence of eggs and brood is one of the clearest indicators – since only the queen can lay fertilized worker eggs, a colony without fresh brood has likely lost its queen or has one that is no longer functional.

Other signs to watch for include:

• Unusual temperament: Honey Bee Suite notes that a queenless colony often becomes notably more irritable, since the queen’s pheromones help maintain calm and cohesion in the hive.
• Surplus pollen and nectar storage: Without larvae to feed, nurse bees become foragers, leading to excess honey and pollen filling cells that would otherwise hold brood.
• Declining population: With no new workers emerging, colony numbers visibly drop week over week.
• Drone-dominated brood: When workers begin laying unfertilized eggs – a sign the colony has been queenless for weeks – the brood consists almost entirely of drones, which cannot sustain the colony.

Dadant & Sons adds that a queenless colony will often build emergency queen cells, but if the colony has been queenless for too long, all viable larvae will be past the point where they can be converted into a queen – making uniting the only viable option.

Pre-uniting checklist 🔗

Before any merger, run through this checklist to give the process the best chance of success:

• Inspect for disease: Both colonies must be free of contagious diseases. Do not skip this step.
• Decide on the queen: PerfectBee recommends keeping the younger, more productive queen and removing the other before uniting – if both queens remain, they will fight, and both could be injured or killed in the process.
• Choose placement: The stronger colony stays in its original position as the base. The weaker colony goes on top. This ensures returning foragers from the strong colony find their hive undisturbed.
• Check for nectar flow: Meridian Beekeepers points out that bees unite more successfully during an active nectar flow. If none is on, feeding both colonies sugar syrup for a few days beforehand can smooth the process.

The newspaper method: step-by-step 🔗

Betterbee describes the newspaper method as the most reliable technique for uniting bee colonies, and it is widely considered the standard approach across experienced beekeepers. The method works by placing a physical barrier between the two colonies that the bees will gradually chew through. This controlled delay allows the two groups to hear, smell, and gradually mix pheromones before they make direct contact – dramatically reducing the risk of fighting.

Here is how to carry out the newspaper method:

1. Prepare the weak colony: Consolidate the weaker colony down to its best frames – those with brood, pollen, and honey. Remove the queen you do not want to keep. Foxhound Bee Company recommends condensing it to a single box where possible, keeping only the strongest frames.
2. Remove the cover of the strong colony: Leave the strong colony in its original location undisturbed. Remove its outer and inner covers to expose the top box.
3. Place newspaper over the top box: Lay a single sheet of plain newspaper – not glossy, not heavily inked – directly over the frames of the strong colony. Dave Cushman’s beekeeping resource recommends pricking the newspaper a few times with a nail or pin in the area above the centre of the box, giving the bees a starting point to begin chewing.
4. Place the weak colony on top: Set the weaker colony’s box directly on top of the newspaper-covered strong colony. Replace the outer cover.
5. Add a hive-top feeder (optional): Dummies.com suggests adding a sugar syrup feeder on top during the uniting process to reduce stress and provide the bees with additional resources during the transition.
6. Leave them alone: Do not disturb the hive for at least five to seven days. The bees will chew through the newspaper at their own pace, gradually integrating their scents through the barrier as they work.

How to know the merger is complete 🔗

Betterbee explains that one of the clearest signs of a successful merge is finding scraps of chewed newspaper outside the hive entrance – the bees have broken through and begun functioning as one colony. Dave Cushman’s resource advises leaving the united colony alone for a full week, after which the newspaper will have been largely removed and scattered as fragments near the hive entrance.

Once confirmed, open the hive, remove any remaining newspaper, and reorganize the frames. Brood frames should go into the lower box, with honey and pollen stores arranged above.

Managing queen selection during uniting 🔗

Queen selection is one of the most important decisions in the uniting process. PerfectBee recommends the beekeeper remove the less desirable queen before uniting begins, rather than leaving the outcome to chance. The younger, more actively laying queen is generally the preferred choice. Some experienced beekeepers, however, follow an alternative approach: Dave Cushman’s resource notes that leaving both queens and letting the bees decide is sometimes effective, as bees may be better judges of subtle queen quality than the beekeeper – in most cases, the younger and fitter queen prevails.

A useful option when uncertain is placing a queen excluder between the two boxes instead of, or in addition to, the newspaper. This allows the bees to unite fully while keeping the queens physically separated, giving you time to assess which one is performing better before making a final decision.

After the merge: monitoring and post-uniting care 🔗

The first inspection after uniting – typically around one week post-merger – is critical. Check for a laying queen with a healthy, consistent brood pattern. Carolina Honeybees recommends using this inspection to consolidate all brood frames into the lower box and move honey frames above, creating a well-organized hive setup.

Watch for these indicators over the next few weeks:

• Dead bees at the entrance: A small number is normal. Excessive losses may indicate ongoing fighting and should prompt a closer inspection.
• Fresh eggs and young larvae: Their presence confirms the queen has been accepted and is actively laying.
• Unexpected queen cells: If the bees start building new queen cells shortly after uniting, it may signal that the retained queen was not accepted and has been superseded or killed.

Master Beekeeper Charlotte Anderson of Carolina Honeybees reinforces a broader point that is easy to overlook: five strong colonies will consistently outperform ten weak ones, both in honey production and overall health resilience. Uniting is not a compromise – it is sound apiary management.

Alternative method: direct combination 🔗

PerfectBee notes that in some circumstances – particularly when one colony has been queenless for a long time, or when both colonies are very small – a direct combination without newspaper is possible. To reduce fighting when skipping the newspaper, beekeepers can smoke both colonies heavily and spray the adult bees lightly with sugar syrup, which causes the bees to groom each other and mix their scents quickly. This method carries a higher risk of aggression, however, and the newspaper method remains the preferred approach for most situations.

What do you think? If you’ve managed an apiary through spring, have you ever had to decide between trying to save a weak colony on its own or uniting it with a stronger one – and what guided that decision? And given that a single strong colony consistently outperforms multiple weaker ones, how do you balance the instinct to preserve every hive against the practical benefits of uniting?

References

1. https://extension.msstate.edu/publications/colony-growth-and-seasonal-management-honey-bees
2. https://www.betterbee.com/instructions-and-resources/using-newspaper-to-combine-two-colonies.asp
3. https://www.mannlakeltd.com/blog/signs-your-colony-is-queenless/
4. https://www.honeybeesuite.com/how-to-recognize-a-queenless-hive-9-reliable-ways/
5. https://www.dadant.com/learn/signs-your-colony-may-be-queenless/
6. https://www.perfectbee.com/a-healthy-beehive/inspecting-your-hive/combining-honeybee-colonies
7. https://meridianbeekeepers.com/2023/03/20/how-to-unite-two-colonies/
8. https://www.foxhoundbeecompany.com/blogs/miscellaneous/how-to-combine-beehives
9. http://www.dave-cushman.net/bee/unitenewspaper.html
10. https://www.dummies.com/article/home-auto-hobbies/hobby-farming/beekeeping/how-to-combine-two-bee-colonies-into-one-hive-188385/
11. https://carolinahoneybees.com/combine-beehives/
12. https://www.carolinahoneybees.com/combine-beehives/